Even if you don't feel like you are showing, by week nine you may have already experienced morning sickness, fatigue, and mood swings. Mood swings are common at this stage, so don't beat yourself up if you feel elated one moment and terrified the next. You are not alone! Fluctuating emotions are normal at this stage in the game, but there is hope! Many moms report that their mood swings usually lighten up during the second trimester.